Multipathing configuration maximums

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When you configure multipathing on your hosts, you must consider the maximum supported configuration limits.

Table 1 provides the configuration maximums for hosts that run a Microsoft Windows Server operating system.
Note: Check your operating system and HBA documentation for limitations that might be imposed by other driver software.
Table 1. Maximum multipathing configurations
Object Maximum Description
Volume 2048 (see Notes 1 and 2). The maximum number of volumes that can be supported by the system for a host that runs a Windows operating system (per host object).
Paths per volume (see Note 3). 8 The maximum number of paths to each volume. The recommended number of paths is four.
Notes:
  1. For the most current volume maximum, search for “Volume mappings per host object” in the topic V8.3.0 Configuration Limits and Restrictions for IBM System Storage SAN Volume Controller at the following website:

    http://www.ibm.com/support

  2. You can assign a maximum of 26 individual drive letters to a host that runs a Windows operating system. However, a Windows Server operating system supports submounting drives as directories within other drives.